Our high-quality rubber stoppers are non-greasy and have a durometer of 45. This stopper set is a one-pound set of stoppers that have been drilled with one hole.
Contains the following stoppers:
- Four Stoppers Each Sizes #00, #0, #1, #2, and #3
- Three Stoppers Each Sizes #4, #5, #6, and #7
Follow this link to see our Size and Approximate Count Chart.
WARNING: This product can expose you to chemicals including benzene and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
This product contains latex, which can cause allergic reactions in some people. If symptoms of an allergic reaction occur, stop use immediately and consult a physician.
This product contains small parts, making it a choking hazard. Only use with adult supervision.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.